Happy Hall School

233 Santa Inez Avenue, San Bruno, CA 94066 · San Mateo County

Child care center (single license, multiple age groups)

Happy Hall School is a licensed child care center in San Bruno, CA, licensed for up to 123 children and serving children in more than one age group. It has held its California license since 2026. No visit in that period produced a citation, which puts it among the 34% of ranked California centers with no citations. It has too few inspections so far for a statewide comparison.

Inspection record

Not enough historyCalifornia has inspected this center 0 times since Feb 8, 2021. Centers are compared once they have at least 2 inspections.

0Type A citations

0Type B citations

0Inspections

0 of 0Complaints substantiated

0 citations from 1 state visit since Feb 8, 2021 · 0 in the last 12 months · last inspected —

Every state visit

Citation issuedNo citationTop row: inspections · bottom row: complaint investigations and other visits

Citations, newest first

No citations in this period.

About this center

Licensed capacity123 children

License typeChild care center (single license, multiple age groups)

License statusLicensed

Licensed sinceJan 26, 2026

LicenseeHappy Hall School

AdministratorErin Olivas

Phone(650) 583-7370

State facility #414005269

Other licenses at this address

Happy Hall School
Child care center (preschool) · ClosedToo few inspections to compare

Common questions

Has Happy Hall School had any serious violations?

No Type A citations since 2021.

How much does Happy Hall School cost?

California does not publish individual centers’ prices, so ask Happy Hall School for its current tuition. For comparison, the median full-time price at licensed centers in San Mateo County, which includes San Bruno, was $1,947 a month for infants (about $2,460 today), $1,619 a month for preschoolers (about $2,040 today) and $730 a month for school-age children (about $920 today) in the state’s 2021 Regional Market Rate Survey.

Who runs Happy Hall School?

The licensee is Happy Hall School, and the administrator listed with the state is Erin Olivas.

Licensed centers nearby

Millbrae Nursery School, INC
86 Center St., Millbrae · 0.5 mi away · 44 spotsMore citations than most Stratford School
300 El Camino Real, San Bruno · 0.5 mi away · 144 spotsAbout typical Intelligent Learning
1111 El Camino Real, Millbrae · 0.6 mi away · 30 spotsToo few inspections to compare St. Andrew's Preschool
1600 Santa Lucia Avenue, San Bruno · 0.7 mi away · 53 spotsToo few inspections to compare California Montessori School
480 N. San Anselmo Avenue, San Bruno · 0.7 mi away · 38 spotsMore citations than most Belle Air Preschool
450 3rd Avenue, San Bruno · 0.8 mi away · 96 spotsAbout typical

Citations are quoted from California Department of Social Services inspection and complaint reports. Type A citations are the state’s most serious category (an immediate risk to children’s health, safety or personal rights); Type B citations are a potential risk. A citation is a finding about one rule, not a judgment about a center overall. Complaint allegations appear here only when the state substantiated them.

To read the full state reports, search facility number 414005269 on the California Care Facility Search. Data refreshed Oct 2, 2026.